If at the end of the year you had no open positions(*), I don't think you have to worry much about the wash sales - they won't have any impact on how much taxes you owe. Because any wash sale loss that gets applied to one of the other purchases is still going to end up flowing down to the same total of a $336 short term loss.

* no open positions, and that you don't have a potential wash sale situation spanning the end of year - ex. didn't sell for a loss on Dec. 20th, and buy back in on Jan 5th